7042340 has 24 divisors (see below), whose sum is σ = 14864640. Its totient is φ = 2802528.

The previous prime is 7042337. The next prime is 7042349. The reversal of 7042340 is 432407.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (7042349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3671 + ... + 5249.

It is an arithmetic number, because the mean of its divisors is an integer number (619360).

Almost surely, 2^7042340 is an apocalyptic number.

It is an amenable number.

7042340 is an abundant number, since it is smaller than the sum of its proper divisors (7822300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7042340 is a wasteful number, since it uses less digits than its factorization.

7042340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1811 (or 1809 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 7042340 is about 2653.7407559896. The cubic root of 7042340 is about 191.6780266319.

Adding to 7042340 its reverse (432407), we get a palindrome (7474747).

The spelling of 7042340 in words is "seven million, forty-two thousand, three hundred forty".